A really quick and easy 11th-doctor's sonic screwdriver... with two extra prongs?
Printed the three pieces in PLA (top 20% fill gray, others 10% white) and used a soldering iron to weld them together. A really fast build, easily painted as shown.
As http://www.thingiverse.com/make:149036 noted, Thing 596771 makes a nice insertable tip... and it's even nicer when you print it in glow-in-the-dark PLA, as we did. ;-)